Power-transmission mechanism.



A. ANDERSON.

POWER TRANSMISSION MECHANISM.

' APPLICATION FILED JULY 2. 191a.

PatentedSept. 21, 1915.

5 SHEETS-SHEET I.

WITIVESSES: INVENTOR 72. 23. W. MW

ATTORIVEV A. ANDERSON.

POWER TRANSMISSION MECHANISM.

APPLICATION FILED IULY 2, 19m.

Patented Sept. 21, 1915.

- INVENTOR WITNESSES:

BY W A'TTORIVE A. ANDERSON.

POWER TRA-NSMIS SION MECHANISM. APPLICATION HLED JULY 2.1913- 1 1 53,882, Patented Sept. 21, 191.5.

mg suzns-suser a.

. "a WITNESSES: INVENTOR A TTORNEY A.ANDER SON. POWER TRANSMISSION MECHANISM.

APPLICATION FILED JULY 2. 1913.

5 SHEETS-SHEET 4.

Patented Sept. 21, 1915..

A. ANDERSON,

POWER TRANSMISSION MECHANISM.

' APPLICATION FILED JULY 2.1913.

1,153,882. PatentedSept. 21, 1915.

5 SHEETSSHEET 5.

ylzllrllllllzrlllllllnna WITNESSES." IN I/E N TOR V -SSJJM WMW' Kw W BI I A TTOR/VEI UNITED STATES PATEN OFFICE.

ANDREW ANDERSON,OF PORTLAND, OREGON.

POWER-TRANSMISSION MECHANISM.

To (INN/10H], 1'25 m 03 concern:

Be it known that I, ANDREW ANDERSON, a citizen of the United States, residing at Portland, in the county of Multnomah. and State of Oregon, have inventedcertain new and useful Improvements in Power-Transmission Mechanism, of which the following is a specification.

My invention relates to power transmission mechanism, and more particularly to power transmission mechanism adapted for connecting an engine or power-furnishmg mechanism with a plurality of elements or members to be driven, such, for example, as propellers, traction or other wheels.

Among the salient objects of my inventlon are, to provide a power transmission mechanism of the character referred to adapted for connecting a single engine or powerfurnishing mechanism with a plurality of elements or members to be driven, and to drive those elements or members together in either direction or in different directions from one engine; to provide in such a mech anism a construction wherein the engine can be allowed to run without driving either of said elements; to provide in a mechanism of the character referred to means for quickly reversing the direction of either one or both of the dri'venelements or members without reversing the engine; and, in general, to provide a mechanism of the character referred to which is piractiail, simple and efficient.

In order that others may thoroughly understand my invention, I have shown in the accompanying sheets of drawings yrs practical embodiment thereof, and f()l"t@i p1l1'- pose have chosen to show it adapted for driving two propellers from one engine,

although it is quite evident that the invention can he used in other places and for other purposes.

In the drawings, Figure 1 is a top plan view of my invention with the cover of the easing removed: Fig. 2 is a. section through the ball bearing thrust portion and the rings each side oi same: Fig. 3 is a plan View of one half of said ball bearing thrust portion: Fig. st is a. cross section through the reversebands and also showing the small .eear holder in-elevation: Fig. 5 shows the". rake-members (partly broken awa and the brakeshoes pivotedthereto: Fig. 6 is zrlongitiiclinallsection throiigh line A A of Fig. 1: Fig.

Specification of Letters Patent.

Patented Sept. 21, 1915.

Application filed July 2, 1913. Serial No. 776,976.

reversing and braking mechanisms: Fig. 8

is a plan View of the reach-rod: Fig. 9 is an end elevation of the mechanism shown in Fig. 7, partly broken away to show the braking mechanisms: Fig. 10 is av plan view ofthe shifting-screw bracket: Fig. 11 is plan view of the shifting-lever and collar:' Fig. 12 is a vertical longitudinal section through Fig. 9 (partly broken away) with the reverse-lever and shifting-screw bracket removed, and showing the brake-arm in elevation, and with'the stuffing-box, tail-bearing and propeller added: Fig. 13 is a plan view of'one of the bevel reverse-gears: Fig. 14 is a plan view of one of the detachable flanges which presses the material of which the friction-cone is composed against the permanent flange of said friction-cone: Fig. 15 is an end elevation of the friction-core and flange: Fig. 16 is a detail of one of the bolts 29, and Fig. 17 is a detail of one of the screws that fasten the bevel gears to the hub of the friction-core.

Like characters of reference indicate like parts in the several figures of the drawings, in which'the numeral 2, indicates the base of the casing with flange 3, and boxes-4t, integral therewith; the caps 5 are placed over boxes 4, and form bearings for shafts 6 and 7, respectively; boxes 8, also form" part of base 2, and together with caps 9, form the bearings for driving-shaft 10. on which is mounted drum 11, of which driving-cones 12 and 13, and hubs 14, form integral parts. Revolubly mounted on shaft 10 are soft metal rings 15, ball-bearing thrusts 16, and soft metal rings 17, respectively; said hall bearing thrusts being placed intermediate said soft metal rings; shaft 10 has also fastened thereto coupling 18, which is connected to .the, engine by means of flange 19, which forms part of said coupling' The mechanisms that are attached to shafts 6 and 7, being identical, '1 will only describe the construction and arrangements of the parts attached to one of said shafts, (shaft 6) which can be best described by referring to Fig. 12; the parts being arranged as follows Mounted on shaft 6,and keyed thereto is a friction-core 20, and another friction-core 21, which is loosely mounted thereto, which pins re composed respectively of pintles 22, hubs 23 and bosses 2a; revolubly placed on said pintles are small gears'25, which are held in place by reverse-band 26, whichis made in three segments as shown in hip}. 1. Placed on friction-core 20, is a friotion-cone 27, composed of a number of disks of some fibrous material, such as paper; one end of said frictioircone rests against flange 28 which is integral with said core 20,'and is held in such position by means of bolts 29.,

. ch P 1 5 til 'm g'h said friction-cone and into detachable flange 30. Core 21 has also.

a friction-cone 31 attached thereto of the samematerial and in the same manner as said core 20 and is fastened thereto by means of bolts 29 and detachable flange 32. When said detachable flanges are fixed in place as above described, bevel gears 33, are placed on the hubs 23 of the gear-holder and se- 4 1-41 to which are attached brake-levers- When the braking l2-t2 respectively. mechanisms are thus assembled, the cap 4-3 is placed on. base 2 and fastened thereto.

New referring to Fig. 9, I will describe the combinations and arrangements of the shifting and reversing mechanisms: shift-v ing-screw bracket 4.4;, is firmly fastened to cap 43 andshifiing-lever bracket 15 is fastened to base 2; pivoted to said shiftinglevcr bracket is a split shifting-lever 46 with. portions 17 integral therewith; fitting into an annular groove in shifting collar 48, is a shifting-band 112, h pins 50 attached istcr with slots 51 of the portions i7 of shifting-lever 46. livoted within the upper portion of shiftinglever 46 is a shifting-nut which fits over shiftingscrew 53, which is rcvolubly at tached at one end (by means of pin 54) to shifting-screw bracket 4.4: and at its opposite end revolves in box which is integral with said shifting-bracket and cap 56 which is secured to said box; said shifting-screw is held in fixed longitudinal relation to bracket i l by means of collars 57 which are integral. with screw 53 and placed at each side ofboX 55 and cap 56; reverse lever 58 is then pivoted to cars 59, and reachrod (50 is pivoted to said reverse-lever 58 and. reverse-arm i. It will be noted that for the purpose of avoiding prolixity I'have only described the reversing and shifting mechanisms that are attached to one side of my inventidn, but the mechanisms on the other side are identical with the exception that for reasons that will hereinafter apear, I have used the exponent a in connection with the characters of reference.

In Fig. 1 of the drawings the driving cones and driven-cones are disengaged and when in this position shifting-lever 46 is'perpendicular as shown in Fig. 9, and in order to operate my invention the engineer grips handles 61-451 of shifting-wheels 62-432 and turns them in such-direction as to cause the upper end of shifting-levers JS-AG to move toward cars 59 of the shifting-screw brackets, which operations bring propeller cones 27 and 27, in contact with drivingcone 12; when said cones and shifting-levers. are in the positions described the boat moves forward, When it is desired to reverse the motion of the boat, the operator simultaneously turns the wheel ,62 and 62* in order to shift the cones 31 and 31 into contact with the driving cone 13, and then moves the levers 58 and 58 forwardly, or toward the engine. This operates to move the'reverse arms 42 and 42", which are fixed to double screws 41am and said screws actuate nuts 40 1O toward each other, which nuts actuate brake-arms 35 and brake-shoes 37 and bring said brake-shoes in contact with reverse-band 26 which prevents cones 2727 from turning shafts 6 and 7 respectively and transmits the power for revolving said shafts from cones 3131 through themediuni of gears 33 and 25. When the boat is moving rearward and it is desired to reverse the motion, 13. to cause the boat to move forward, the opposite operations would be necessary. When it is desired to turn the boat about quickly, the engineer turns the wheels (52 or 62 so as to bring cone. 27 into contact with driving cone 12, and cone 31* into contact with driving cone 13, or so as to bring cone 31 into contact with driving cone 13 and the cone 27 in contact with driving cone 12, and then by moving one of the levers 58 or 5th forwardly, de )en'ding upon the direction which it is desired to turn the boat, one propeller acts against the other, and the boat-will be turned quickly.

My invention may be constructed of any material and made of any size deemed suit-,-. able for such a mechanism, and whlle I have! described and illustrated a preferred form of construction and combination of elements deemed suitable for such a device, I desire to include in this application all mechanical equivalents and substitutes that may be fairly considered to come within the scope of my invention as defined and specified in the appended claims.

Having thus fully described my invention so that others skilled in the art to which it a ppertains, may be enabled to construct and use the same, what I claim and desire to secure by Letters Patent, is .1. A power transmission mechanism comprising in combination a plurality of elements to be driven, a main driving member adapted to be driven from any power-furnishing mechanism, a pair of intermediate driving members connected with each of the elements to be driven, one of each pair hav-' ing a. positive connection with its element, and one'of each pair being, an idler, a diflerential driving mechanism between the driving members of each of said pairs, and means for establishing at will driving connections between said main driving member and the two idler members or the two'pos -tively connected members said pairs of' intermediate driving members.

2. A power transmission mechanism comprising in combination a plurality of elements to be'driven, a main driving member adapted to be driven from any power furnishing mechanism, a pair of intermediate driving members connected with each of the elements to be driven, one of each pair having a positive connection with its element, and one of each pair being an idler, a differential driving mechanism between the driving members of'each of said pairs, means for establishing at will'driving connections between said main driving member and the two idler members or the two positively con nected members of said pairs of intermediate driving members, and means for holding a part of either of said differential driving mechanisms, whereby it operates to transmit motion in an opposite direction from one'of said driving members to the other.

3. A power transmission mechanism comprising in combination a plurality of ele 'ments to be driven, a main driving member adapted to be driven from any power furnishing mechanism, a pair of intermediate driving members for each of the elements to be driven each of said members being movably mounted and adapted to be moved into and out of driving engagement with said main driving member, one of said members of each pair being an idler, a differential driving mechanism between the intermediate driving members of each pair, means formoving said pairs of intermediate driving members to put one or the other of each pair in driving engagement with said main driving member, and means for putting said differential mechanism into operation to transmit motion in an opposite direction from one of said members to the other.

4.. A power transmission mechanism, comprising in combination with two elements to be driven, a main driving member adapted to be driven from an engine, two bodily movable driving members connected respectively wlth the elements to be driven and movable mto and out of driving engagement with said main driving member, means for member's mounted on said shaft, one fixed thereto and the other loose thereon, a differential mechanism disposed between said 5 two driving members and adapted to turn therewith, means for holding said differential mechanism at will, whereby it operates to transmit motion in a different direction from one of said driving members to these other, and meansfor putting either of said two driving members into driving engagement with said main driving member.

6. In a power transmission mechanisma' main driving member adapted to be power driven, two main driving shafts at opposite sides thereof, two driving members mounted on each 'of said shafts adjacent said main driving member and adapted to be moved into and out of driving engagement therewith, one of said members being fixedly secured. to its shaft and one being loosely mounted thereon, differential driving mechanisms con- 'necting said fixed and loose driving members and adapted to turn therewith, means to! locking said differentialmechanisms against bodily rotation, whereby said connnected members are driven in different directions, and means for moving and holding either said fixed or loose driving members in driving engagement with said main driving member, substantially as describech -7. In a power transmission mechanism, in combination. a main driving member adapt ed to be power driven, a main driving shaftrotatably mounted adjacent thereto and movable longitudinally, two driving members mounted on said shaft, one in fixed and one in loose relationship therewith, and l adapted to be moved alternately into and out of driving engagement with said main driving member by the movement in opposite directions of said shaft longitudinally,

adifferential" driving mechanism between tixed or loose driving member thereon in said driving members whereby. said drivifgg members are driven in opposite chreetlons, substantially as descrlbed.

8. A power transmission mechanismvof the;

character referred to, comprising in combi- I1at1o11, a main driving member adapted to be power driven, two main driving shaftsdriving engagen'ient with said main driving member, substantially as described.

9. A power transn'iission mechanism' of the cha acter referred to, comprising in combination a main casing, a main drivin member mounted therein and adapted to be power driven, twodriving sha'fts rotatably mounted therein nt ofposite sides-0f, said ma in driving inember andadjustable longi ftiidinally, a driving member fixedly secured to each shaft 7 adjacent said main driving member,'a driving member loosely mounte upon eac hrshat't, differential mechanism connecting said fixed and loose members on each shaft, a brake mechanism for looking said diflerential mechanism against turning with said fixed and loose members, whereby Site directions, and a power screw with operating connections, for moving and holdlng each main shaft in different positions longitudinally, whereby toput said differ ent driving members on said shaft in driving engagel'nent with said lnain driving member, substantially as described.

In testimony that I claim the foregoing as my own, I hereunto aflix my signature in the presence of two subscribing witnesses.

I ANDREV ANDERSON.

Witnesses:

Pn'rna HOB-ERLIN,

J. O./IIALL.

a to cause said members to be driven in oppo 

